80867825065 has 8 divisors (see below), whose sum is σ = 97402140360. Its totient is φ = 64453759872.

The previous prime is 80867825063. The next prime is 80867825083. The reversal of 80867825065 is 56052876808.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6713999721 + 74153825344 = 81939^2 + 272312^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80867825065 - 2¹ = 80867825063 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 80867824997 and 80867825015.

It is not an unprimeable number, because it can be changed into a prime (80867825063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30061044 + ... + 30063733.

It is an arithmetic number, because the mean of its divisors is an integer number (12175267545).

Almost surely, 2^80867825065 is an apocalyptic number.

It is an amenable number.

80867825065 is a deficient number, since it is larger than the sum of its proper divisors (16534315295).

80867825065 is a wasteful number, since it uses less digits than its factorization.

80867825065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60125051.

The product of its (nonzero) digits is 6451200, while the sum is 55.

The spelling of 80867825065 in words is "eighty billion, eight hundred sixty-seven million, eight hundred twenty-five thousand, sixty-five".